18999357

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10031043

約数列:

[1, 3, 13, 23, 39, 59, 69, 177, 299, 359, 767, 897, 1077, 1357, 2301, 4071, 4667, 8257, 14001, 17641, 21181, 24771, 52923, 63543, 107341, 275353, 322023, 487163, 826059, 1461489, 6333119, 18999357]

約数ペア:

[(1, 18999357), (3, 6333119), (13, 1461489), (23, 826059), (39, 487163), (59, 322023), (69, 275353), (177, 107341), (299, 63543), (359, 52923), (767, 24771), (897, 21181), (1077, 17641), (1357, 14001), (2301, 8257), (4071, 4667)]